US12452874B2ActiveUtilityA1

Method for monitoring physical downlink control channel, user terminal and readable storage medium

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Assignee: SPREADTRUM COMM SHANGHAI COPriority: Mar 27, 2020Filed: Mar 24, 2021Granted: Oct 21, 2025
Est. expiryMar 27, 2040(~13.7 yrs left)· nominal 20-yr term from priority
H04W 72/12H04W 24/08H04L 27/26025H04W 72/20H04L 5/0092H04L 5/0053H04L 5/0007Y02D30/70H04W 52/0225H04W 76/27H04W 72/0446H04W 72/23H04W 52/0216
54
PatentIndex Score
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Cited by
25
References
19
Claims

Abstract

A physical downlink control channel monitoring method, a user terminal and a readable storage medium. The method comprises: receiving downlink control information in an nth slot; and when the downlink control information comprises switching indication information of a physical downlink control channel monitoring state, starting from an (n+X)th slot, executing a physical downlink control channel monitoring behavior according to a switched physical downlink control channel monitoring state, wherein n and X are both integers and X≥1. By using the solution, the switching of a monitoring behavior of a physical downlink control channel during scheduling of the same bandwidth part can be realized.

Claims

exact text as granted — not AI-modified
The invention claimed is: 
     
       1. A method for monitoring a physical downlink control channel, comprising:
 receiving downlink control information in an n-th time slot; and 
 performing physical downlink control channel monitoring from a (n+X)-th time slot, based on a switched physical downlink control channel monitoring state, in a case that the downlink control information comprises switching indication information on a physical downlink control channel monitoring state; wherein n and X are both integers, and X is greater than or equal to 1; 
 wherein the switching indication information on the physical downlink control channel monitoring state comprises:
 skipping all or part of the physical downlink control channel monitoring in a time period; and 
 switching a parameter of a physical downlink control channel search space. 
 
 
     
     
       2. The method for monitoring the physical downlink control channel according to  claim 1 , wherein the value of X is determined based on a value of a minimum available scheduling delay activated and applied in a currently active downlink bandwidth part. 
     
     
       3. The method for monitoring the physical downlink control channel according to  claim 2 , wherein the value of X is determined based on the value of the minimum available scheduling delay activated in the currently active downlink bandwidth part by:
 in a case that the minimum available scheduling delay is greater than 0, the value of X is the minimum available scheduling delay, or a greater of the minimum available scheduling delay and Z, wherein a value of Z corresponds to a subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located; and 
 in a case that the minimum available scheduling delay is equal to 0, the value of X is 1 or Z. 
 
     
     
       4. The method for monitoring the physical downlink control channel according to  claim 3 , wherein in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 15 Khz or 30 Khz, the value of Z is 1; and in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 60 Khz or 120 Khz, the value of Z is 2. 
     
     
       5. The method for monitoring the physical downlink control channel according to  claim 1 , wherein the value of X is a fixed value. 
     
     
       6. The method for monitoring the physical downlink control channel according to  claim 5 , wherein in a case that X is equal to 1, a skipping duration of the physical downlink control channel monitoring indicated in the downlink control information is greater than a minimum available scheduling delay. 
     
     
       7. The method for monitoring the physical downlink control channel according to  claim 1 , wherein the skipping all or part of the physical downlink control channel monitoring in the time period comprises:
 during a current discontinuous reception periodicity, not monitoring the physical downlink control channel. 
 
     
     
       8. A user equipment, comprising:
 a memory; and 
 a processor, 
 wherein the memory stores a computer program executable on the processor, wherein the computer program, when being executed by the processor, causes the processor to: 
 receive downlink control information in an n-th time slot; and 
 perform physical downlink control channel monitoring from a (n+X)-th time slot, based on a switched physical downlink control channel monitoring state, in a case that the downlink control information comprises switching indication information on a physical downlink control channel monitoring state; wherein n and X are both integers, and X is greater than or equal to 1; 
 wherein the switching indication information on the physical downlink control channel monitoring state comprises:
 skipping all or part of the physical downlink control channel monitoring in a time period; and 
 switching a parameter of a physical downlink control channel search space. 
 
 
     
     
       9. The user equipment according to  claim 8 , wherein the value of X is determined based on a value of a minimum available scheduling delay activated and applied in a currently active downlink bandwidth part. 
     
     
       10. The user equipment according to  claim 9 , wherein in a case that the minimum available scheduling delay is greater than 0, the value of X is the minimum available scheduling delay, or a greater of the minimum available scheduling delay and Z, wherein a value of Z corresponds to a subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located, and
 in a case that the minimum available scheduling delay is equal to 0, the value of X is 1 or Z. 
 
     
     
       11. The user equipment according to  claim 10 , wherein in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 15 Khz or 30 Khz, the value of Z is 1; and in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 60 Khz or 120 Khz, the value of Z is 2. 
     
     
       12. The user equipment according to  claim 8 , wherein the value of X is a fixed value. 
     
     
       13. The user equipment according to  claim 12 , wherein in a case that X is equal to 1, a skipping duration of the physical downlink control channel monitoring indicated in the downlink control information is greater than a minimum available scheduling delay. 
     
     
       14. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program, when being executed by a processor, causes the processor to:
 receive downlink control information in an n-th time slot; and 
 perform physical downlink control channel monitoring from a (n+X)-th time slot, based on a switched physical downlink control channel monitoring state, in a case that the downlink control information comprises switching indication information on a physical downlink control channel monitoring state; wherein n and X are both integers, and X is greater than or equal to 1; 
 wherein the switching indication information on the physical downlink control channel monitoring state comprises:
 skipping all or part of the physical downlink control channel monitoring in a time period; and 
 switching a parameter of a physical downlink control channel search space. 
 
 
     
     
       15. The non-transitory computer readable storage medium according to  claim 14 , wherein the value of X is determined based on a value of a minimum available scheduling delay activated and applied in a currently active downlink bandwidth part. 
     
     
       16. The non-transitory computer readable storage medium according to  claim 15 , wherein in a case that the minimum available scheduling delay is greater than 0, the value of X is the minimum available scheduling delay, or a greater of the minimum available scheduling delay and Z, wherein a value of Z corresponds to a subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located, and
 in a case that the minimum available scheduling delay is equal to 0, the value of X is 1 or Z. 
 
     
     
       17. The non-transitory computer readable storage medium according to  claim 16 , wherein in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 15 Khz or 30 Khz, the value of Z is 1; and in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 60 Khz or 120 Khz, the value of Z is 2. 
     
     
       18. The non-transitory computer readable storage medium according to  claim 14 , wherein the value of X is a fixed value. 
     
     
       19. The non-transitory computer readable storage medium according to  claim 18 , wherein in a case that X is equal to 1, a skipping duration of the physical downlink control channel monitoring indicated in the downlink control information is greater than a minimum available scheduling delay.

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